Union-Employer Proposal Would Hit Some Retirees

A coalition of unions and employers is proposing changes to the federal law that governs the pension plans of about 10 million people, including reducing benefits paid to retirees, the first time in four decades that such cuts would be allowed.

The proposal, which would undo guarantees put in place by federal law in 1974, is already stirring controversy among pension-rights advocates and rank-and-file union members. It was developed by some of the nation's biggest unions, including the Teamsters and United Food and...